Ah yes, the infamous 5-4 ruling in favor of more police powers. "You were so close to keeping your rights....so close. Better luck next time."
http://www.npr.org/2014/04/22/305993180/court-gives-police-new-power-to-rely-on-anonymous-tips
http://www.npr.org/2014/04/22/305993180/court-gives-police-new-power-to-rely-on-anonymous-tips
In August 2008, an anonymous 911 caller in California phoned in a report that a pickup truck had run her off the road. The caller gave the location of the incident, plus the make and model of the truck and the license plate number.
Police subsequently pulled over a truck matching that description and smelled marijuana as they were walking toward the vehicle. Officers eventually found 30 pounds of marijuana in the truck and arrested the driver, Jose Prado Navarette.
Navarette challenged the search and arrest as unconstitutional, arguing that officers did not have reasonable suspicion to pull him over in the first place because police knew nothing about the identity or reliability of the tipster. more at link